Braider carrier



June 9, 1936 J. R. DENNIS vZAM-3,2

BRAIDR CARRIER Filed May 2o, 1955 Patented June 9, 1936 UNITED srrss Tsar BRAEDER CARRIER Massachusetts Application May 2t), 1935, Serial No. 22,417

4 Claims.

This invention relates to an improved construction of yarn package carrier for braiding machine, and aims to provide means whereby the contacted surfaces will wear longer and the friction on `the thread is reduced.

An object of the invention also is to provide a smooth surface giving improved performance and costing less to obtain when all tems are considered.

Another object of the invention is to provide a braider carrier having weight with a thread guiding surface which Will last longer without loosening and yet be of satisfactory character and at the same time economical to produce.

A further object of the invention is to provide a surface such that if after wear it does become grooved the groove may be removed by application of heat.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out inthe appended claims.

In the accompanying drawing:

Fig. 1 is an elevational View, parts being omitted, of a package carrier having my invention embodied therein;

Fig. 2 is a perspective view on an enlarged scale of the tension weight forming part of the package carrier shown in Figure 1;

Fig. 3 is a section on line 3 3 of Figure 2;

Fig. 4 is a section on line 4-4 of Figure 3;

Fig. 5 is a section through the Weight standard on line 5 5 of Figure 1;

Fig. 6 is a fragmentary view taken on line 6 5 of Figure 5.

In order to reduce the cost of package carriers for braiding machines, it is common practice to make the tension Weights of such carriers of cast iron. It has been found, however, that the cost of casting such weights is not the only item in their installation. The surfaces of such weights against which the thread runs must be carefully smoothed off before the weights are put into use and it has been found that, in spite of using great care in initially smoothing such surfaces, they usually need to be smoothed repeatedly after the weights have gone into use to prevent excessive roughening and breaking of the thread, particularly in the use of rayon thread formed of a plurality of fine denier filaments, such repeated smoothings being required presumably because of the natural grain and porosity of cast iron. This removes some of the natural scale of the casting and after the thread has once cut through this scale the Weight must be replaced with a new one. Furthermore, the thread from the package runs first through the horizontal eye in the weight standard and then about the weight and then through a vertical eye at the upper end of such standard and it has been common pracn tice to line such eyes with porcelainto reduce the friction and wear on the thread at such points. Such use of porcelain, however, involves expense for material and additional workmanship. I have discovered that it is possible to apply a hard smooth coating to the surfaces of these eyes and Weights of braiding machines so that the friction on the thread is never sufficient to roughen or break the same and that such a coating can be applied at less cost than now required to smooth the rubbing surfaces on the tension Weights, or to apply porcelain liners to the eyes of the weight standard and will last longer. The following is a detailed description of the preferred embodiment of my invention, disclosing one way in which these advantageous results may be accomplished:

With reference to the drawing, lll indicates in general, a package carrier for a braiding machine of a well-known type, the carrier l having a. spindle l2 for supporting the package of thread I4 with trunnons E6 for supporting the usual latch, although this latch is omitted. Parallel to the spindle I2 is the usual weight standard E8 on which is slidably mounted a tension weight 20. The thread 22 from the package lli is led off through a horizontal eye 24 which extends through the standard I8 near the middle of such standard. From the eye 24, the thread 22 passes downwardly around a guide Zii'which unites the halves of the weight 2D and thence the thread runs upwardly through an eye 28 in an offset 3d at the top of the standard I8.

In accordance with my invention, the guide portion 22 of such weight 2l) against which the thread 22 rubs in being drawn off the package has a coating 32 thereon of hard smooth material presenting a polished anti-friction surface. 'I'he preferred material for this coating 32 is a glass or vitreous enamel (commonly used in coating surfaces of cast iron parts of stoves and like articles) and I find such material is applied very economically by a brush and then heat treated to vitrify the same and makes a coating which comes from the baking oven in polished condition requiring no hand work to t it for rubbing contact with the thread. Such coating does not rubi or wear the thread so as to roughen it, and should this coating become grooved after years of wear, it is applied in such quantity that I may simply heat the same again to Vitrifying temperature and the groove Will be lled in and a new surface presented which may be continued to last the life of the carrier; also, it is a cheaper method of acquiring the desired surface than the usual polishing of the cast iron.

I have further found that in the use of thread made of a plurality of ne filaments, such as 300 denier fine, that one of these filaments is easily caught and broken, and When caught will slide along the others and break them thus causing a large percentage of imperfect goods. Our eX- perience on goods of this character has been an average of fifteen percent (15%) imperfect goods and with a great loss of time in operation. With the use of my new method of smoothing the weight and the surface, I obtain practically no breaks or imperfect goods because of smoothing the roughened surface, with a corresponding saving of time in the operation.

As appears clearly also in Figures 1, 5 and 6, the eyes 24 and 28 have coatings 32a and 32h on the surfaces against Which the thread is apt to rub, and I find that I can similarly coat these surfaces 32a and 3213 of the vitreous material such as I have mentioned for coating the weight bar 26 and thereby obtain results substantially equivalent to those obtained When using porcelain liners in such eyes, but at much less cost for labor and material.

While I have described the use of vitreous material for coating the surfaces rubbed by the thread of braiding machines, I do not limit myself to such material except to the extent indicated in the claims as other plating with hard materials will have improved results.

I claim:

1. A braider carrier having a standard and a tension Weight thereon having a thread guide surface covered With a coating presenting a smooth polished surface and of sufficient thickness to be re-fused for re-surfacing the coating after Worn.

2. A braider carrier having coatings of glazed vitreous material on the surfaces contacted by the thread, said coatings being of sufficient thickness to be re-fused for re-surfacing the coatings after worn.

3. The method of smoothing the thread contacting surface of the Weight of a braider carrier, which consists in coating said surface with glazed vitreous material, and then resurfacing any wear thereof after use by merely heating said material.

4. In a brader carrier, a cast iron tension weight having a guide surface for the thread in the nature of a coating of glazed vitreous material thick enough to be resurfaced after Worn merely by heating.

JOHN R. DENNIS. 

